- 4TB storage capacity ideal for home or small office NAS systems, backups, media libraries, and file sharing
- Designed for 24/7 operation in NAS environments with up to 8 bays
- NASware™ 3.0 firmware enhances compatibility, reliability, and system performance
- 5400 RPM class for low power consumption and reduced heat
- 256MB cache improves read/write speeds and performance in demanding applications
- Optimized for RAID configurations, file servers, media streaming, and private cloud setups
- Designed and tested for compatibility with top NAS system manufacturers like Synology, QNAP, and ASUSTOR
| Specification | Detail |
|---|---|
| Brand | Western Digital (WD) |
| Series | WD Red NAS |
| Model | WD40EFZX |
| Capacity | 4TB |
| Form Factor | 3.5-inch |
| Interface | SATA III 6Gb/s |
| Rotational Speed | 5400 RPM class |
| Cache | 256MB |
| NAS Compatibility | Optimized for NAS systems (up to 8 bays) |
| Workload Rate | Up to 180TB/year |
| Operating Temperature | 0°C to 65°C |
| Non-operating Temp | -40°C to 70°C |
| Dimensions | 147 x 101.6 x 26.1 mm |
| Weight | Approx. 570g |
Related Products
Reliable 4TB 3.5″ SATA hard drive with large cache and high-capacity storage, ideal for desktop PCs, creative workflows, and everyday computing.
1TB enterprise-grade HDD with 7200 RPM, 128MB cache, and SATA 6Gb/s interface. Engineered for high reliability in 24/7 data center and business environments.
High-capacity 8TB desktop hard drive with SATA 6Gb/s interface, ideal for storing large files, backups, media libraries, and everyday computing.
Optimized 4TB hard drive for 24/7 surveillance systems with ImagePerfect™ firmware and support for up to 64 HD cameras — perfect for DVR/NVR setups.
Out of stock
2TB NAS-optimized HDD with 5900 RPM, AgileArray™ technology, and 180TB/year workload rating. Designed for 24×7 reliability in multi-user NAS environments.
BRAND: WESTERN DIGITAL
MODEL: WD10PURX-64KC9Y0 – PURPLE
TYPE: INTERNAL – DESKTOP
STORAGE: 1TB
RPM: 5400
CACH: 64MB
OTHER: SURVEILLANCE
CONDITION: NEW
Reliable 1TB 3.5″ SATA hard drive with 7200RPM speed and 32MB cache — ideal for desktop upgrades, everyday storage, and performance computing.
Reliable 1TB 3.5″ desktop hard drive with SATA 6Gb/s interface and 7200 RPM speed for everyday computing, storage, and performance.
1TB 3.5″ SATA desktop hard drive with 7200 RPM speed, 64MB cache, and proven WD reliability. Ideal for everyday computing and storage expansion.
Optimized 4TB surveillance hard drive built for 24/7 operation in DVR/NVR systems — supports up to 64 HD cameras with AllFrame™ technology.
Out of stock
Reliable 1TB 3.5″ SATA hard drive with 7200 RPM speed and 64MB cache, ideal for desktop PCs, storage upgrades, and general-purpose computing.
